ata.c revision 1.7
1 /* $NetBSD: ata.c,v 1.7 1999/03/10 13:11:43 bouyer Exp $ */ 2 /* 3 * Copyright (c) 1998 Manuel Bouyer. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Manuel Bouyer. 16 * 4. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef WDCDEBUG 32 #define WDCDEBUG 33 #endif /* WDCDEBUG */ 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/file.h> 39 #include <sys/stat.h> 40 #include <sys/malloc.h> 41 #include <sys/device.h> 42 #include <sys/syslog.h> 43 44 #include <dev/ic/wdcreg.h> 45 #include <dev/ata/atareg.h> 46 #include <dev/ata/atavar.h> 47 48 #define DEBUG_FUNCS 0x08 49 #define DEBUG_PROBE 0x10 50 #ifdef WDCDEBUG 51 extern int wdcdebug_mask; /* init'ed in wdc.c */ 52 #define WDCDEBUG_PRINT(args, level) \ 53 if (wdcdebug_mask & (level)) \ 54 printf args 55 #else 56 #define WDCDEBUG_PRINT(args, level) 57 #endif 58 59 /* Get the disk's parameters */ 60 int 61 ata_get_params(drvp, flags, prms) 62 struct ata_drive_datas *drvp; 63 u_int8_t flags; 64 struct ataparams *prms; 65 { 66 char tb[DEV_BSIZE]; 67 struct wdc_command wdc_c; 68 69 #if BYTE_ORDER == LITTLE_ENDIAN 70 int i; 71 u_int16_t *p; 72 #endif 73 74 WDCDEBUG_PRINT(("wdc_ata_get_parms\n"), DEBUG_FUNCS); 75 76 memset(tb, 0, DEV_BSIZE); 77 memset(prms, 0, sizeof(struct ataparams)); 78 memset(&wdc_c, 0, sizeof(struct wdc_command)); 79 80 if (drvp->drive_flags & DRIVE_ATA) { 81 wdc_c.r_command = WDCC_IDENTIFY; 82 wdc_c.r_st_bmask = WDCS_DRDY; 83 wdc_c.r_st_pmask = WDCS_DRQ; 84 } else if (drvp->drive_flags & DRIVE_ATAPI) { 85 wdc_c.r_command = ATAPI_IDENTIFY_DEVICE; 86 wdc_c.r_st_bmask = 0; 87 wdc_c.r_st_pmask = WDCS_DRQ; 88 } else { 89 return CMD_ERR; 90 } 91 wdc_c.flags = AT_READ | flags; 92 wdc_c.timeout = 1000; /* 1s */ 93 wdc_c.data = tb; 94 wdc_c.bcount = DEV_BSIZE; 95 if (wdc_exec_command(drvp, &wdc_c) != WDC_COMPLETE) 96 return CMD_AGAIN; 97 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 98 return CMD_ERR; 99 } else { 100 /* Read in parameter block. */ 101 memcpy(prms, tb, sizeof(struct ataparams)); 102 #if BYTE_ORDER == LITTLE_ENDIAN 103 /* 104 * Shuffle string byte order. 105 * ATAPI Mitsumi and NEC drives don't need this. 106 */ 107 if ((prms->atap_config & WDC_CFG_ATAPI_MASK) == 108 WDC_CFG_ATAPI && 109 ((prms->atap_model[0] == 'N' && 110 prms->atap_model[1] == 'E') || 111 (prms->atap_model[0] == 'F' && 112 prms->atap_model[1] == 'X'))) 113 return 0; 114 for (i = 0; i < sizeof(prms->atap_model); i += 2) { 115 p = (u_short *)(prms->atap_model + i); 116 *p = ntohs(*p); 117 } 118 for (i = 0; i < sizeof(prms->atap_serial); i += 2) { 119 p = (u_short *)(prms->atap_serial + i); 120 *p = ntohs(*p); 121 } 122 for (i = 0; i < sizeof(prms->atap_revision); i += 2) { 123 p = (u_short *)(prms->atap_revision + i); 124 *p = ntohs(*p); 125 } 126 #endif 127 return CMD_OK; 128 } 129 } 130 131 int 132 ata_set_mode(drvp, mode, flags) 133 struct ata_drive_datas *drvp; 134 u_int8_t mode; 135 u_int8_t flags; 136 { 137 struct wdc_command wdc_c; 138 139 WDCDEBUG_PRINT(("wdc_ata_set_mode=0x%x\n", mode), DEBUG_FUNCS); 140 memset(&wdc_c, 0, sizeof(struct wdc_command)); 141 142 wdc_c.r_command = SET_FEATURES; 143 wdc_c.r_st_bmask = 0; 144 wdc_c.r_st_pmask = 0; 145 wdc_c.r_precomp = WDSF_SET_MODE; 146 wdc_c.r_count = mode; 147 wdc_c.flags = AT_READ | flags; 148 wdc_c.timeout = 1000; /* 1s */ 149 if (wdc_exec_command(drvp, &wdc_c) != WDC_COMPLETE) 150 return CMD_AGAIN; 151 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 152 return CMD_ERR; 153 } 154 return CMD_OK; 155 } 156 157 void 158 ata_perror(drvp, errno, buf) 159 struct ata_drive_datas *drvp; 160 int errno; 161 char *buf; 162 { 163 static char *errstr0_3[] = {"address mark not found", 164 "track 0 not found", "aborted command", "media change requested", 165 "id not found", "media changed", "uncorrectable data error", 166 "bad block detected"}; 167 static char *errstr4_5[] = {"", 168 "no media/write protected", "aborted command", 169 "media change requested", "id not found", "media changed", 170 "uncorrectable data error", "interface CRC error"}; 171 char **errstr; 172 int i; 173 char *sep = ""; 174 175 if (drvp->ata_vers >= 4) 176 errstr = errstr4_5; 177 else 178 errstr = errstr0_3; 179 180 if (errno == 0) { 181 sprintf(buf, "error not notified"); 182 } 183 184 for (i = 0; i < 8; i++) { 185 if (errno & (1 << i)) { 186 buf += sprintf(buf, "%s %s", sep, errstr[i]); 187 sep = ","; 188 } 189 } 190 } 191
Indexes created Fri Sep 26 08:10:20 GMT 2025